4.3BSD/usr/contrib/nntp/xmit/llist.h

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#include <sys/types.h>

struct llist {
	struct llist	*l_next;
	caddr_t		l_item;
	unsigned	l_len;
};

extern void		l_free();
extern struct llist	*l_alloc();

#ifndef NULL
#define NULL	0
#endif